Univision reporter Adriana Arevalo became an unintentional witness to history today, as a shot in front of the White House just so happened to capture in it one of Bo Obama's many exuberant summits with the White House lawn.

The Portuguese Water Spaniel can be seen bounding across the shot several seconds into this clip, and it's an important reminder of how, despite our political differences, we can all agree that presidential dogs running through the back of camera shots is one of the things that makes this nation great — that, and trying to imagine what events preceded Bo's raucous romp around the Rose Garden.